Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem New 2162106 Foundry Technology Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code:2162106 Date:20/11/2018
Subject Name:Foundry Technology
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1* (a) Differentiate the terms? Pattern? and ?casting?. 03
(b) Illustrate the criteria to be selected before manufacturing of pattern for
castings
04
(c) Explain the advantages, limitations, and applications of foundry practice 07
Q.2 (a) Describe the basic steps of foundry with help of Flow chart. 03
(b) Identify the pattern which is use for manufacturing big casting by one
moulder and describe it with schematic sketch
04
(c) Explain the sailent feature of cupola furnace with schematic sketch 07
OR
(c) What do you mean by pattern allowances? Why its necessary to be
provided during Manufacturing? Explain in brief about shrinkage
allowance.
07
Q.3 (a) Enlist the basic requirements of core. 03
(b) Explain how green strength and permeability are affected by Grain
shape of the sand.
04
(c) What do you mean by investment casting? Explain the investment
casting process with advantages limitation and application.
07
OR
Q.3 (a) which pattern is used for manufacturing of master pattern? Explain in
brief
03
(b) why machining allowance is provided to the pattern? 04
(c) Write note on sodium silicate Co2 process 07
Q.4 (a) list out the patterns that can be used for mass production and also
describe the salient feature of any one.
03
(b) Write applications of shell moulding process 04
(c) List various casting defects and suggest the remedies for it. 07
OR
Q.4 (a) Draw the schematic figure of core box which is used for manufacturing
L shape Pipe bends
03
(b) What is importance of binder in sand casting process? List various
binders.
04
(c) Differentiate the semi centrifugal and true centrifugal casting. 07
Q.5 (a) Could low c steel be melted in cupola?-Justify 03
(b) Compare and contrast sweep pattern and segmental pattern. 04
(c) What do you mean by investment casting? Explain the investment
casting process with advantages limitation and application.
07
OR
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code:2162106 Date:20/11/2018
Subject Name:Foundry Technology
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1* (a) Differentiate the terms? Pattern? and ?casting?. 03
(b) Illustrate the criteria to be selected before manufacturing of pattern for
castings
04
(c) Explain the advantages, limitations, and applications of foundry practice 07
Q.2 (a) Describe the basic steps of foundry with help of Flow chart. 03
(b) Identify the pattern which is use for manufacturing big casting by one
moulder and describe it with schematic sketch
04
(c) Explain the sailent feature of cupola furnace with schematic sketch 07
OR
(c) What do you mean by pattern allowances? Why its necessary to be
provided during Manufacturing? Explain in brief about shrinkage
allowance.
07
Q.3 (a) Enlist the basic requirements of core. 03
(b) Explain how green strength and permeability are affected by Grain
shape of the sand.
04
(c) What do you mean by investment casting? Explain the investment
casting process with advantages limitation and application.
07
OR
Q.3 (a) which pattern is used for manufacturing of master pattern? Explain in
brief
03
(b) why machining allowance is provided to the pattern? 04
(c) Write note on sodium silicate Co2 process 07
Q.4 (a) list out the patterns that can be used for mass production and also
describe the salient feature of any one.
03
(b) Write applications of shell moulding process 04
(c) List various casting defects and suggest the remedies for it. 07
OR
Q.4 (a) Draw the schematic figure of core box which is used for manufacturing
L shape Pipe bends
03
(b) What is importance of binder in sand casting process? List various
binders.
04
(c) Differentiate the semi centrifugal and true centrifugal casting. 07
Q.5 (a) Could low c steel be melted in cupola?-Justify 03
(b) Compare and contrast sweep pattern and segmental pattern. 04
(c) What do you mean by investment casting? Explain the investment
casting process with advantages limitation and application.
07
OR
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2
Q.5 (a) What are chaplets? Draw different types chaplets 03
(b) State the function of Runner, Riser and gating system in casting process 04
(c) Explain gravity die casting technique in detail. 07
*************
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This post was last modified on 20 February 2020